Existence and multiplicity of solutions for sublinear ordinary differential equations at resonance

Using a $Z_2$ type index theorem, we show the existence and multiplicity of solutions for the sublinear ordinary differential equation $$ \mathcal{L} u(t)=\mu u(t)+W_u(t,u(t)),\quad 0\leq t\leq L $$ with suitable periodic or boundary conditions. Here $\mathcal{L}$ is a linear positive selfadjo...

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Bibliographic Details
Main Authors: Chengyue Li, Fenfen Chen
Format: Article
Language:English
Published: Texas State University 2015-05-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2015/125/abstr.html